Diagnostic slide for microscopes



FIG. 1 is a perspective view of a diagnostic slide for microscopes showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right end elevational view, the left end elevational view being a mirror image thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a diagnostic slide for microscopes, as shown and described. 